CN201121137Y - Mechanical decontamination curved fine grille - Google Patents

Abstract

The utility model discloses a mechanical decontamination arc-shaped fine grid, which comprises a frame, a water inlet, a water outlet, a slag discharge port, a water collection tank, a grid, a rotating brush, a driving device and a decontamination device; In the frame, the rotating brush is set in the grid through the rotating shaft, and the rotating brush can brush the inner surface of the grid under the drive of the driving device; the water outlet is located at the bottom of the frame; the water collection tank is located at the upper part of one side of the frame And connected with the water inlet, the slag discharge port is set on the other side of the frame, and a comb-shaped decontamination device is installed on the frame corresponding to the slag discharge port; The upper end of the inclined section of the net is located at the outlet of the sump, the lower end of the inclined section of the grid is connected to the first end of the arc section of the grid, and the second end of the arc section of the grid is higher than the first end. This second end is connected to the slag outlet. Compared with the prior art, the utility model improves the separation effect of slag and water and the processing capacity of products, and reduces the water content of grid slag.

Description

Mechanical decontamination curved fine grille

technical field

The utility model relates to a mechanical decontamination type arc-shaped fine grid, which is mainly used in the waste water treatment process of the environmental protection industry, and is used for intercepting fine solid substances contained in the waste water, so as to ensure the stable, safe and efficient operation of subsequent treatment facilities.

Background technique

The mechanical decontamination type curved fine grid is mainly used in the wastewater treatment process of the environmental protection industry, and is used to intercept the fine solid substances contained in the wastewater to ensure the stable, safe and efficient operation of the subsequent treatment facilities.

The existing curved fine grids mainly include the following types:

(1) Gravity-type curved fine grid, its structure is shown in Figure 1, including the frame, grid, water collection tank, water inlet, water outlet, and slag discharge port. The water collection tank is located at the upper part of the rear side of the frame and connected with The water inlets are connected, the slag discharge port is located at the lower part of the front side of the frame, the grid is arranged in an arc-shaped steep slope between the outlet of the sump and the slag discharge port, and the water outlet is provided at the lower part of the rear side of the frame. Its working principle is: the waste water flows down from the upper sump, the slag and water are separated through the grid, and the retained grid slag is removed from the grid by its own gravity and the momentum of the subsequent water flow, and finally discharged from the slag discharge port. The main problems: ① For wastewater with high suspended solid content or high viscosity wastewater, the slag removal efficiency is low, the grid is easy to block, and the grid needs to be cleaned manually; ② The grid slag cannot be completely removed from the grid, and manual cleaning is required Assist in slag removal; ③ During the operation of the equipment, a large amount of malodorous gas is generated, which affects the surrounding environment. .

(2) Rotating brush-type arc-shaped fine grid, its structure is shown in Figure 2, including the frame, arc-shaped grid, water inlet, water outlet, slag discharge port, rotating brush, driving device and decontamination device, The arc-shaped grid is set in the frame, the water inlet is located at the lower part of one side of the frame and leads into the arc-shaped grid from the side of the arc-shaped grid, and the slag discharge port is located at the end of the arc-shaped grid. The water outlet is set at the lower part of the frame, and there is a rotating brush in the arc-shaped grid. Driven by the driving device, the rotating brush can sweep the inner arc surface of the arc-shaped grid. The frame corresponds to the slag discharge port. A comb-shaped decontamination device is installed at the position of the rotary brush. Every time the rotary brush turns around, it must be combed by the decontamination device once to remove the hair, long fibers or other filamentous and massive solids attached to the rotary brush. , to keep the brush clean. Its working principle is: waste water enters the grid from the side, and the grid slag retained during the separation process of slag and water is removed from the grid by the continuously rotating rotary brush. The main problems: ①Wastewater directly enters the curved screen, slag and water are mixed together, and the separated screen slag has a high moisture content, which increases the difficulty and cost of subsequent waste slag treatment, and the processing capacity is low; ②Equipment operation process produce foul-smelling gas and affect the surrounding environment.

Utility model content

The purpose of the utility model is to provide a mechanical decontamination arc-shaped fine grid, which can reduce the moisture content of grid slag, and can reduce the impact of odor on the surrounding environment during equipment operation.

The technical scheme of the utility model is as follows: the mechanical decontamination arc-shaped fine grid includes a frame, a water inlet, a water outlet, a slag discharge port, a water collection tank, a grid, a rotating brush, a driving device and a decontamination device; The grid is set in the frame, and the rotating brush is set in the grid through the rotating shaft, and the rotating brush can brush the inner side of the grid under the drive of the driving device; the water outlet is located at the bottom of the frame; the water collection tank is located at the bottom of the frame The upper part of one side is connected with the water inlet, the slag discharge port is set on the other side of the frame, and a comb-shaped decontamination device is installed on the frame corresponding to the slag discharge port; the above-mentioned grid includes a slope section and an arc Surface section, the upper end of the slope section of the above-mentioned grid is located at the outlet of the above-mentioned sump, the lower end of the slope section of the above-mentioned grid is connected with the first end of the arc section of the above-mentioned grid, and the arc section of the grid The second end is higher than the above-mentioned first end, and this second end is connected to the above-mentioned slag discharge port; it also includes a gas collection hood and an exhaust pipe. One end of the pipe is connected to the above-mentioned gas collecting hood, and the other end is connected to the exhaust gas treatment equipment.

The cross-section of the grid bars of the above-mentioned grid net along the arrangement direction of each grid bar is an inverted trapezoid.

A water outlet weir is arranged at the outlet of the above-mentioned sump.

The above-mentioned driving device is an adjustable speed driving device.

After adopting the above scheme, the mechanical decontamination type curved fine grid of the utility model has the following advantages compared with the prior art:

① Most of the waste water is separated from the grid slag on the slope section of the grid and discharged, and the rest enters the curved section of the grid for separation of slag and water. Discharge, in the second half of the arc section, the rotary brush slag discharge is in an upward stage, and the residual water between the grid slag is further separated and discharged out of the grid, which improves the separation effect of slag and water and the processing capacity of the product, and reduces the waste of grid slag. moisture content.

②The exhaust gas generated during operation is collected by the gas collecting hood and then sent to the exhaust gas treatment equipment through the exhaust pipe for treatment, maintaining a good working environment.

③The cross-section along the arrangement direction of each grid bar is an inverted trapezoidal grid bar, which can effectively prevent grid blockage.

④ The water outlet weir is set in the sump to make the waste water flow down evenly, prevent short flow of waste water, and effectively use the grid.

⑤Adjust the rotation speed of the rotating brush according to the water quality of the wastewater and the operation status of the equipment, so that the product can be applied to wastewater with high suspended solids and wastewater with high viscosity, and expand the application range of the product.

Description of drawings

Figure 1 is a schematic structural view of a conventional gravity-type curved fine grid.

Fig. 2 is a structural schematic diagram of a conventional rotating brush-type curved fine grid.

Fig. 3 is the elevation view of the utility model.

Fig. 4 is a side sectional view of the utility model.

Fig. 5 is a sectional view of the sump in Fig. 4 .

Fig. 6 is a cross-sectional view of the grid bar in the present invention.

Detailed ways

The mechanical decontamination arc fine grid of the present utility model, as shown in Figures 3, 4, 5, and 6, includes a frame 1, a water inlet 11, a water outlet 12, a slag discharge port 13, a water collection tank 2, and a grid 3. Rotating brush 4, motor 5, decontamination device 6, gas collecting hood 7 and exhaust pipe 8. The water outlet 12 is located at the lower part of the frame, the water collecting tank 2 is located at the upper rear side of the frame 1 and communicates with the water inlet 11, the outlet of the water collecting tank 2 is provided with a water outlet weir 21, and the slag discharge port 13 is provided at the front side of the frame In the middle and lower part of the frame 1, there is a comb-shaped decontamination device 6 made of nylon filaments at the position corresponding to the slag discharge port 13. The decontamination device 6 can scrape off the residual grid slag on the rotary brush 4 , to ensure that the rotating brush 4 is in good use. The grid 3 is arranged in the frame 1, and the grid 3 includes a slope section 31 and an arc section 32. The upper end of the slope section 31 of the grid is connected to the water outlet weir 21 of the sump 2, and the water outlet weir makes the waste water flow down evenly, preventing the waste water from short-circuiting. flow, effectively utilizing the grid, the lower end of the inclined section 31 of the grid is connected with the first end of the arc section 32 of the grid, and the second end of the arc section 32 of the grid is higher than the first end, this The second end is connected to the slag discharge port 13, and the section of the bars 30 of the grid 3 along the arrangement direction of each bar is an inverted trapezoid, and the inverted trapezoidal bars 30 can effectively prevent the grid 3 from being blocked. The rotating brush 4 is set in the grid 3 through the rotating shaft, and the rotating brush 4 can brush and sweep the inner surface of the grid 3 under the drive of the motor 5. The motor 5 is equipped with a speed regulating mechanism, which can be adjusted according to the water quality of the wastewater and the operation status of the equipment. The rotating speed of the brush makes the product suitable for wastewater with high suspended solids and wastewater with high viscosity, which expands the application range of the product. The gas collecting hood 7 is set on the top of the frame 1 to collect exhaust gas. One end of the exhaust pipe 8 is connected to the gas collecting hood 7, and the other end is connected to the exhaust gas treatment equipment. The exhaust gas generated during operation is collected by the gas collecting hood 7 After being collected, the exhaust pipe 8 is sent to the waste gas treatment equipment for processing, so as to maintain a good working environment.

When the utility model works, waste water enters the sump 2 from the water inlet 11, and flows to the slope section 31 of the grid through the outlet weir 21 of the sump 2, where most of the waste water is separated from the grid slag at the slope section 31 of the grid and discharged. The wastewater enters the arc surface section 32 of the grid to separate slag and water, and the grid slag is swept out from the grid 3 under the action of the rotating brush 4 and finally discharged from the slag discharge port 13, and the comb type The decontamination device 6 scrapes the residual grid slag for the rotary brush 4. In the second half of the arc surface section 32 of the grid, the slag discharge of the rotary brush 4 is in an ascending stage, and the residual moisture between the grid slag is further separated and discharged from the grid 3. The separation effect of slag and water and the processing capacity of products are improved, and the moisture content of screening slag is reduced.

The product of the utility model is suitable for wastewater treatment projects in industries such as tanning, printing and dyeing, textile, brewing, papermaking, food, and petrochemical industries.

Claims (5)

1. Mechanical decontamination type curved fine grid, including frame, water inlet, water outlet, slag discharge port, sump, grid, rotating brush, driving device and decontamination device; the grid is set in the frame, The rotating brush is set in the grid through the rotating shaft, and the rotating brush can brush the inner surface of the grid under the drive of the driving device; the water outlet is located at the lower part of the frame; the water collection tank is located at the upper part of one side of the frame and connected to the water inlet Through, the slag discharge port is set on the other side of the frame, and a comb-shaped decontamination device is provided on the frame corresponding to the slag discharge port; The upper end of the slope section of the grid is located at the outlet of the above-mentioned sump, the lower end of the slope section of the grid is connected to the first end of the arc section of the grid, and the second end of the arc section of the grid is larger than The above-mentioned first end is high, and the second end is connected to the above-mentioned slag discharge port. 2. The mechanical decontamination type curved fine grid according to claim 1, characterized in that it also includes a gas collection hood and an exhaust pipe, the gas collection hood is arranged on the top of the frame to collect exhaust gas, One end of the exhaust pipe is connected to the gas collecting hood, and the other end is connected to the waste gas treatment equipment. 3. The mechanical decontamination type curved fine grid according to claim 1, characterized in that: the cross-section of the bars of the grid along the arrangement direction of the bars is an inverted trapezoid. 4. The mechanically decontaminated arc-shaped fine grid according to claim 1, characterized in that: a weir is provided at the outlet of the above-mentioned sump. 5. The mechanical decontamination type curved fine grid according to claim 1, characterized in that the driving device is an adjustable speed driving device.

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